112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
|
/*
|
||
|
|
* Driver for Vitesse PHYs
|
||
|
|
*
|
||
|
|
* Author: Kriston Carson
|
||
|
|
*
|
||
|
|
* Copyright (c) 2005 Freescale Semiconductor, Inc.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License as published by the
|
||
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
||
|
|
* option) any later version.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/mii.h>
|
||
|
|
#include <linux/ethtool.h>
|
||
|
|
#include <linux/phy.h>
|
||
|
|
|
||
|
|
/* Vitesse Extended Control Register 1 */
|
||
|
|
#define MII_VSC8244_EXT_CON1 0x17
|
||
|
|
#define MII_VSC8244_EXTCON1_INIT 0x0000
|
||
|
|
|
||
|
|
/* Vitesse Interrupt Mask Register */
|
||
|
|
#define MII_VSC8244_IMASK 0x19
|
||
|
|
#define MII_VSC8244_IMASK_IEN 0x8000
|
||
|
|
#define MII_VSC8244_IMASK_SPEED 0x4000
|
||
|
|
#define MII_VSC8244_IMASK_LINK 0x2000
|
||
|
|
#define MII_VSC8244_IMASK_DUPLEX 0x1000
|
||
|
|
#define MII_VSC8244_IMASK_MASK 0xf000
|
||
|
|
|
||
|
|
/* Vitesse Interrupt Status Register */
|
||
|
|
#define MII_VSC8244_ISTAT 0x1a
|
||
|
|
#define MII_VSC8244_ISTAT_STATUS 0x8000
|
||
|
|
#define MII_VSC8244_ISTAT_SPEED 0x4000
|
||
|
|
#define MII_VSC8244_ISTAT_LINK 0x2000
|
||
|
|
#define MII_VSC8244_ISTAT_DUPLEX 0x1000
|
||
|
|
|
||
|
|
/* Vitesse Auxiliary Control/Status Register */
|
||
|
|
#define MII_VSC8244_AUX_CONSTAT 0x1c
|
||
|
|
#define MII_VSC8244_AUXCONSTAT_INIT 0x0004
|
||
|
|
#define MII_VSC8244_AUXCONSTAT_DUPLEX 0x0020
|
||
|
|
#define MII_VSC8244_AUXCONSTAT_SPEED 0x0018
|
||
|
|
#define MII_VSC8244_AUXCONSTAT_GBIT 0x0010
|
||
|
|
#define MII_VSC8244_AUXCONSTAT_100 0x0008
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("Vitesse PHY driver");
|
||
|
|
MODULE_AUTHOR("Kriston Carson");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
|
||
|
|
static int vsc824x_config_init(struct phy_device *phydev)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT,
|
||
|
|
MII_VSC8244_AUXCONSTAT_INIT);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
err = phy_write(phydev, MII_VSC8244_EXT_CON1,
|
||
|
|
MII_VSC8244_EXTCON1_INIT);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int vsc824x_ack_interrupt(struct phy_device *phydev)
|
||
|
|
{
|
||
|
|
int err = phy_read(phydev, MII_VSC8244_ISTAT);
|
||
|
|
|
||
|
|
return (err < 0) ? err : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int vsc824x_config_intr(struct phy_device *phydev)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
||
|
|
err = phy_write(phydev, MII_VSC8244_IMASK,
|
||
|
|
MII_VSC8244_IMASK_MASK);
|
||
|
|
else
|
||
|
|
err = phy_write(phydev, MII_VSC8244_IMASK, 0);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Vitesse 824x */
|
||
|
|
static struct phy_driver vsc8244_driver = {
|
||
|
|
.phy_id = 0x000fc6c2,
|
||
|
|
.name = "Vitesse VSC8244",
|
||
|
|
.phy_id_mask = 0x000fffc0,
|
||
|
|
.features = PHY_GBIT_FEATURES,
|
||
|
|
.flags = PHY_HAS_INTERRUPT,
|
||
|
|
.config_init = &vsc824x_config_init,
|
||
|
|
.config_aneg = &genphy_config_aneg,
|
||
|
|
.read_status = &genphy_read_status,
|
||
|
|
.ack_interrupt = &vsc824x_ack_interrupt,
|
||
|
|
.config_intr = &vsc824x_config_intr,
|
||
|
|
.driver = { .owner = THIS_MODULE,},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init vsc8244_init(void)
|
||
|
|
{
|
||
|
|
return phy_driver_register(&vsc8244_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit vsc8244_exit(void)
|
||
|
|
{
|
||
|
|
phy_driver_unregister(&vsc8244_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(vsc8244_init);
|
||
|
|
module_exit(vsc8244_exit);
|